Available ActiveSupport data types

gistfile1.rb

# Check out Rails::Generators::GeneratedAttribute::default

when :integer                     then 1
when :float                       then 1.5
when :decimal                     then "9.99"
when :datetime, :timestamp, :time then Time.now.to_s(:db)
when :date                        then Date.today.to_s(:db)
when :string                      then name == "type" ? "" : "MyString"
when :text                        then "MyText"
when :boolean                     then false
when :references, :belongs_to     then nil